09051930 is referenced by 13 patents and cites 464 patents.

A pumping system for moving water of a swimming pool includes a water pump, an infinitely variable speed motor, and an arrangement for operating the motor. In one example, the pumping system includes a memory configured to store a plurality of retained speed values, an arrangement for providing a plurality of retained speed values to the memory, and an arrangement for reading a selected one of the plurality of retained speed values from the memory. In addition or alternatively, the pumping system includes a storage medium for digitally storing a plurality of pre-established motor speed values and an arrangement for receiving input from a user to select one of the pre-established motor speeds. In addition or alternatively, the pumping system further includes an arrangement for restarting operation of the motor at a previously selected speed value when power supplied to the motor is interrupted during operation of the motor. A method for controlling the pumping system is also provided.

Title
Speed control
Application Number
13/906177
Publication Number
9051930 (B2)
Application Date
May 30, 2013
Publication Date
June 9, 2015
Inventor
Peter Westermann Rasmussen
Soenderborg
DK
Florin Lungeanu
Beijing
CN
Arne Fink Hansen
Graasten
DK
Einar Kjartan Runarsson
Soenderborg
DK
Kevin Murphy
Quartz Hill
CA, US
Daniel J Hruby
Sanford
NC, US
Christopher Yahnker
Raleigh
NC, US
Ronald B Robol
Sanford
NC, US
Lars Hoffmann Berthelsen
Kolding
DK
Robert W Stiles Jr
Cary
NC, US
Agent
Quarles & Brady
Assignee
Pentair Water Pool and
NC, US
IPC
F04D 15/00
F04D 13/06
F04B 49/20
F04B 49/06
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